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US 2007/0190364 A1Published application
Ruthenium alloy magnetic media and sputter targets
AssigneeHeraeus, Inc.
InventorsAnirban Das, Michael Racine
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AssigneeHeraeus, Inc.
InventorsAnirban Das, Michael Racine
Estimating the term…
A magnetic recording medium having an underlayer comprised of ruthenium (Ru) and an alloying element is provided. The alloying element may be for refining grain size, when it has little or no solid solubility in HCP phase Ru and is present in an amount in excess of that solubility. The alloying element may be for reducing lattice misfit, where it has some solid solubility in HCP phase Ru and is present in an amount not exceeding that solubility. The alloying element may be for both refining grain size and reducing lattice misfit, where it has some solid solubility in HCP phase Ru and is present in an amount in excess of that solubility. The underlayer may alternately include ruthenium and two alloying elements, one for refining grain size, the other for reducing lattice misfit. A sputter target comprising ruthenium and an alloying element is also provided.
A magnetic recording medium, comprising:
A magnetic recording medium, comprising:
A magnetic recording medium, comprising:
A sputter target comprising:
A sputter target comprising:
A sputter target comprising:
Dependencies are inferred from the claim text.